Metal tip ink refill is equipped with acid-free, quick-drying ink that will save your written treasures in spotless condition for years to come. Its reliable ink delivery system guarantees that your writing will always be smooth and look great. Fine lines will be a cinch to create. Pen Refill Type: Roller Ball; Special Ink Type: N/A; Refill For Series: Pentel Excalibur; Waterman, uni-ball, Cross and Schaeffer Roller Balls; Tip Type: Conical.